Grading-machine



(NoModel.) 3 Sheet-s-Sheet 1. P. B. SHELDON.

GRADING MACHINE.

3 Sheets-Sheet 3.

(No Model.)

P. B. SHELDON.

GRADING MACHINE.

Patented Aug. 4, 1885.

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lliure STATES PATENT @rtree PHIL() B. SIIELDON, OF ERIE, PENNSYLVANIA.

GRADING-MACHINE.

SPECIFICATION farming part of Letters Patent No. 323,536, dated August 4, 1885.

Application filed December 5, 1884. (No model.)

To LZZ whom, it' ntay concern.-

Be it known that l, Pi-irLo B. SHELDON, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Grading-Machines; and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to mal-:e and use the same.

This invention relates to improvements in that class otl earth-grading machines in which the Scrapers are carried by a frame-work mounted on wheels.

The objects, purposes, and scopeof the invention will fully appear in the following description, and be pointed out in the claims.

The device is illustrated in the accompanying drawings as follows: Figure 1 is a side elevation. Fig. 2 is a top or plan view. Fig.

dicated by let-ters of reference, as follows: A

A marl; the Vframe-work, of which A is the wooden part and A is an iron arched framework, which is connected with the upper part ot' the lii'th-wheel. A2 is the operators platform. A A are stay-posts braced by the braces a a. c ci are guide-loops for guiding the posts G of the scraper C. B B are the wheels. G is the scraper-bar, and C the scraper-blade. C2 0* are the posts or handles ofthe scraperbar. C3 Gs are the hand-levers by which the scraper is adj usted in proper position vertically. D is the scarier; D, the scarier-i'rame; D2 D3 D* the levers and gearing by which the scaritler is adjusted properly. F is a gathering or transport-ing scraper hung between the hind wheels. F FZ F3 is the gearing for lifting the scraper F. F* F5 F are levers for regulating the pitch or angle of the scraper F and dumping it when elevated. G is a spur-wheel, which may be Vforced into the earth to prevent the rear wheel from slewing out of line when the scraper C is in action. G is a frame carrying the spur-wheel. G2, G3, Gi, G5, G, and G7 is the leverage by which the spur-wheel is operated.

The letters indicating other parts will appear in proper place in the following description of the construction and operation of my machine.

The state of the art to which my invention relates is exempliiied by the following` Letters Patent: No. 37,829, to G. XV. Sayre, March 3, 1863; No. 139,099, to L. l?. 1Wright, May 20, 1873; No. 160,535, to McCall et cl., March 9, 1875, No. 187,467, to H. D. Janes, February 20, 1ST?, No. 191.728, to L. F. Jefferson, May 29, 1877; \Io. 206,913, to S. Griffin, August 13, 1878, and No. 278,296, to G. H. W'aldo, May 22, 1883.

From the above-named patents it will be seen that it is common to use a scraperbar,C,and to suspend it from a frame-work which is mounted on wheels,ai1d provide means for adjusting it vertically; that it is also common to provide a scariiier in front of the scraper-barand make the same adjustable vertically, and it will also be seen that it is common to provide means for preventing the rear wheels from slewing. I shall therefore not claim as my invention the aforesaid 'features broadly as Such.

My invention consists, ii rst, in improvements in the means for moving the scraperbar vertically and holding it in place when adjusted; second, in improvements in the construction and adjustment of the scarilier; thi rd, in the construction, adjustment, and means for operating a conveyingscraper; fourth, in the construction, adjustment, and means for operating the spur which prevents the rear wheels from slewing; and, tith, in providing means for setting the rear wheels at an angle to the line of draft ofthe machine ferthe same purpose.

In operating the machine the scraper C has to be kept forced down constantly against the earth. This especially is the ease where it is being used in clearing streets of ice and hardpacked snow, and also when the earth is hard and refractory. To eifect this easily it is necessary to continually apply power to the levers which move the scraper C vertically, and

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to effect this easily it is desirable that the levers be so constructed that by depressing them the scraper will be depressed, and then the operator can' apply his weight to do the work. The same may also be said ofthe scarifier and the spur G. I have therefore provided double or jointed levers and properly-formed brackets, such as At, to pivot these levers. These brackets are forked, and the two parts of the leverssuch as C5 and 0 or D3 and D* or G4 and GS--are severally pivoted or fulerumed in the arms ofthe forks, and the joint connecting them is below the arms. j

In many uses of the machine it is necessary that the scraper-bar be adj usted to a certain position and kept there without deviation, so that the grading accomplished shall be uni- -form. To eiect this result perfectly it is de sirable that the levers be locked or fastened when in a proper position. I accomplish this purpose by providing the brackets above referred to with arms fr", (see Fig. 5,) which reach back from thev t'ulcra of the hand-levers some distance, and in themI put bolt-holes e', into which a stop-bolt, E', can be placed to hold the lever at any point. (Of course in place ofthe bolt-holes and stop-bolt a pawland-ratchet construction can be used.) In Fig. 5, and on the lever D'L in Fig. l, I show the bolt E as operated by a hand-grip lever, E, and there are also shown two of the levers and bolts, one on each side of the arm a5. The bolt-holes on one side alternate in position with those on the other side, so that close adjustment can be had without having the holes too frequent.

The leverage C3 c, which moves the scraperbar vertically, does not connect directly with the parts C2; but a link, c', is interposed. This link or the post O2, or both, are provided with a series of bolt-holes, c, so as to make adjustments, and the series ot' bolt-holesin either 'the link or the post are connected by slots c5; and the bolt c2 is made with a ilattened space, l, and round space 2, so that byproperly turning the bolt c2 it can be made to slip from one bolt-hole to another without having to be drawn out. a iiattened space and the slots connecting the holes-is not new as an adjusting means, simply, as it is found in other devices, and I shall therefore'not claim it broadly as part of my invent-ion. The lever c" is for the purposeof turning the bolt for the purpose of bringing the ilatpartin position to slip through the slot or not, as desired.

The scariiier consists of a bar or shaft, d, with teeth-bars d protruding from it in opposite directions. These teeth-bars are sharpened at one end, like a knife or colter, and at the other they are beveled somewhat like a chisel, or sharpened like a drag-tooth, if desired. The shaft d is hung in the frame-work D, so it can turn over, and thus present either line ofpoints, if desired. It is prevented from turning when at work by a stop-bar, d', which is adjustable in slides cl2, so as to regulate the This device*to wit, the bolt with' angle or pitch of the teeth when at work. The frame D is swiveled at d in the fork of the frame A, where it connects 'with the frame A, and is jointed at d5, and by the leverage DZ D3 D4, on either side, the scarier can be raised up olif the earth or be raised at one end and lowered at the other, as desired.

The carrying or transferring scraper-bowl F is placed back of the bar-scraper, and when it is used the bar-scraper may be raised up, so as to not touch the earth. It will be used to gather up earth in high places and transport it to low places. It is in form substantially like an ordinary scoop road-scraper. 'Vhen not in use it hangs suspended, as shown by dotted lines in Fig. 3. It issustained by the rope or chain f, and is raised or lowered by the winch F FZ Fi. The drum F3 of the winch is eccentrically arranged, so as to work rapidly. A pawl and ratchet, f f2, is employed on. the winch, as commonly. The

scraper F is adjusted as to its incline toward the earth by the levers F4 F5 F, and when it is raised up it can be dumped by the same levers.

W' hen desired, the bar scraper and the transporting-scraper can both work in conjunction. This can be done by elevating the heel of the bar-scraper and depressing the point, so that it will act like a plow and throw a furrow up about midway of its length, which will be in the line of the scraper F, which will gather it up,and when the scraper Fis filled the operator will throw the point ofthe bar-scraper up out-of the earth, and the niachine will be driven to the dumping-place.

Then the bar-scraper is working in the refractory earth or in clearing up icy streets, the pressure upon it tends to slew the hind wheels, B. To prevent this the spur G is provided. It is placed on the land-side of the machine, by the side of the rear wheel. This spur is shown as a spurred or toothed wheel; but it may be a plain disk-wheel or a fixed blade as well. I do not desire to be limited in this respect, as my invention in this particular relates more to the means for operating the device than to the form of it. It is adjustable on a frame, G, which surrounds the wheel, and is pivoted on a fixed standard, g, at g. The spur is preferably placed on the outside of the wheel, opposite its bearing on the earth. The spur is operated by a foot-lever, GT, which extends to the operators stand A2, and is connected with'the vframe G by the levers and rods G", G5, G", G3, and G2. I do not wish to be limited to the use of this device on one of the hind wheels only, for it may be used on both and on all the wheels, both fore and rear, or not, as desired. If it is used inside the wheels, the frame G need not surround the wheel.

Another method of preventing slewing of the rear wheels is to provide means for setting them at an angle to the line of draft of the machine. This method may be used in conjunction with t-he spur, also, if desired. j

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In Fig. 7 I show means for setting the rear axle at an angle to the frame A. It consists in providing brackets B3 on the sides of the frame A, which have curved slots, through which bolts or pins Z1 extend from the axle B2. These bolts may have nuts on them by which they can be set in the slot at any point desired, or they may be connected with adjusting-levers B by links B4, as shown.

Vhat I claim as new is- 1. In a grading-machine having a scraperbar suspendedbelow a carrying-frame, the combination, with the lifting-posts connected with said scraper-bar, of the jointed levers C3 c and the forked fuleruin-brackets A, as and for the purposes set forth.

2. In a grading-machine having a scraperbar suspended below a carrying-frame, the combination, with the lifting-posts connected with said scraper-bar, of the jointed levers C3 c and the forked fnlcruIn-brackets A4 with arms a5, as and for the purposes set forth.

8. In a gradingmachine having a scraperbar supported by a carrying-frame, the combination, with the lifting-posts connected with said scraper-bar and the levers by which said posts are lifted, of the series of adjusting boltholes at with connecting slots c5, and the bolt c' with fiat-tened space 1 and rounded space 2, as and for the purposes set forth.

i. In a grading-machine of the class herein shown, the combination, substantially as set forth, of a vertically-adjustable scraper-bar and a sca-rider arranged in advance of said scraper, which is supported by a frame which is both swiveled and pivoted, as at d and d5, so as to permit of both a tilting and a vertical movement, as set forth.

5. In a grading machine of the class herein shown, the combination, substantially as set forth, of the frame A, the arched front frame, A', the scarilier-frame D', swiveled Within the fork of the frame A', the lifting-bars D2, and means, substantially as shown, for actuating said lifting-bars.

G. In a grading-machine of the class herein shown, the combination, substantially as set forth, of a vertically-adj ustable scarifier, a vertically-alljustable scraper-bar, and a vertically-adjustable conveying scoop-scraper.

7. In a grading-machine scarifer, the combination, substantially as set forth, with a frame vertically adjustable on the main frame, of the reversible bar di, the oppositely-pro- 55 jecting teeth d, a supporting-frame, and an 8. In a grading-machine of the class herein shown, the combination, substantially as set forth, of a vertically-adj ustable and laterallytilting scariiier, a vertically-adjustable and obliquely-arranged scraper-bar, and a vertically adjustable conveying and dumping scraper-bowl.

9. In a grading-machine of the class herein shown, the combination, substantially as set forth, of a vertically-adjustable obliquely-arranged bar-scraper, and a vertically-adjustable tilting and dumping eonveyer scraperbowl.

10. In a grading-machine of the class herein shown, the combination of the scraper F, Y

the Winch F F3, the supporting chain or rope f, and the tilting and dumping levers F", F5, and F, as set forth.

11. In a grading-machine ofthe class herein shown, the combination, substantially as set forth, of the spur G, frame G', and leverage-gearing G2, G, G4, G5, G, and GT.

12. In a grading-machine of the class herein shown, the combination, with the rear axle and the frame A, of the attaching-brackets B3, with curved slots, and the bolts b, adjustable Within said slots, as and for the purposes mentioned.

13. In a grading-machine of the class herein shown, the combination, With the rear axle and the frame A, of the brackets B3 with curved slots, the bolt b, the links Bt, and levers B5, as shown, and for the purposes set forth.

14. In a grading-machine of the class herein described, the combination of an obliquelyarranged scraper-bar, a spur to prevent the Wheels from slewing, which consists of a revolving Wheel or disk arranged, as shown, to enter the earth by the side of the Wheel opposite its tread, and levers for moving said spur vertically from the operators stand.

15. In a grading-machine of the class herein described, the combination, substantially as set forth, of an obliquely-arranged scraperbar and a spur to prevent slewing of the Wheels While the scraper is in action, which is adj usted, substantially as set forth, to enter the earth by the side of the Wheel opposite its tread.

In testimony whereof I affix my signature in presence of two witnesses.

PHILO B. SHELDON.

Witnessesz JNO. K. HALLooK, Roer. H. PORTER.

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